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Water Science & Technology Vol 65 No 10 pp 1854–1862 © IWA Publishing 2012 doi:10.2166/wst.2012.882 Catalytic ozonation of oxalic acid using carbon nanofibres on macrostructured supportsJ. Restivo, J. J. M. Órfão, M. F. R. Pereira, E. Vanhaecke, M. Rönning, T. Iouranova, L. Kiwi-Minsker, S. Armenise and E. Garcia-BordejéLaboratório de Catálise e Materiais (LCM), Laboratório Associado LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal E-mail: fpereira@fe.up.ptDepartment of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway Ecole Polytechnique Federale de Lausanne (EPFL), GGRC-ISIC-EPFL, Station 6, CH-1015 Lausanne, Switzerland Instituto de Carboquimica (C.S.I.C.), Miguel Luesma Castán 4, 50018 Zaragoza, Spain ABSTRACT Carbon nanofibres (CNFs) were grown on different macrostructured supports such as cordierite monoliths, carbon felts and sintered metal fibres. The resulting composites exhibited excellent resistance to attrition/corrosion and its porosity is mainly due to mesoporous structures. The CNF/structured materials were tested in the ozonation of oxalic acid in a conventional semi-batch reactor after being crushed to powder form, and in a newly designed reactor that may operate in semi-batch or continuous operation. The CNFs supported on the different structured materials exhibited high catalytic activity in the mineralization of oxalic acid. Keywords: carbon nanofibres; oxalic acid; ozonation; structured catalysts eProduct: Buy this article for £24.00 (IWA MEMBER PRICE: £18.00) All prices include VAT. For customers where VAT should not be applied, the VAT amount will be removed upon payment |
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